PROBLEM TO BE SOLVED: To provide a manufacturing method capable of improving yield rate during manufacturing powder having high quality &bgr-glucan, to accelerate product development by using physical property of &bgr-glucan by using the method, and further to produce a novel usage field such as cereal grain thickener and texture modifier.SOLUTION: There is provided a method of manufacturing powder having high &bgr-glucan by conducting sequentially a barley polishing processing process of polishing barley raw material at abrasive ratio of 30 to 40%, a pulverization processing process of pulverizing the barley raw material through the barley polishing processing process to a ground product having a particle diameter of 10 to 500 &mum, a centrifugation recovery process of centrifuging and recovering the ground product of the barley raw material through the pulverization processing process, and a screening classification process of recovering only ground product having the particle diameter of 63 &mum or more by screening classification from the ground product obtained by the centrifugation recovery process.【課題】 高品質のβグルカン含有粉の製造時の歩留り率を上げることができる製造方法を提供し、それを利用してβグルカンの物性を生かした製品開発を助長し、さらには穀物増粘剤や食感改良剤といった新たな活用分野を創出すること。【解決手段】 大麦原料を研磨率30~40%でとう精してなる精麦加工工程と、この精麦加工工程を経た大麦原料を粒径10~500μmの粉砕物に粉砕する粉砕加工工程と、粉砕加工工程を経た大麦原料の粉砕物を遠心回収する遠心回収工程と、遠心回収工程を経た粉砕物からフルイにて粒径が63μm以上の粉砕物のみをフルイ分級にて回収するフルイ分級工程とを順次行うことを特徴とするβグルカン高含有粉の製造方法である。【選択図】 図1
